MultiVector.h

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//     ____   ______ __
//    / __ \ / ____// /
//   / /_/ // /    / /
//  / ____// /___ / /___   PixInsight Class Library
// /_/     \____//_____/   PCL 2.7.0
// ----------------------------------------------------------------------------
// pcl/MultiVector.h - Released 2024-06-18T15:48:54Z
// ----------------------------------------------------------------------------
// This file is part of the PixInsight Class Library (PCL).
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// ----------------------------------------------------------------------------
 
#ifndef __PCL_MultiVector_h
#define __PCL_MultiVector_h
 
 
#include <pcl/Defs.h>
#include <pcl/Diagnostics.h>
 
#include <pcl/Array.h>
#include <pcl/Vector.h>
 
namespace pcl
{
 
// ----------------------------------------------------------------------------
 
template <typename T>
class PCL_CLASS GenericMultiVector : public Array<GenericVector<T> >
{
public:
 
   using multivector_implementation = Array<GenericVector<T> >;
 
   using vector = GenericVector<T>;
 
   using scalar = typename vector::scalar;
 
   using component = typename vector::component;
 
   using iterator = typename multivector_implementation::iterator;
 
   using const_iterator = typename multivector_implementation::const_iterator;
 
   using vector_iterator = typename vector::iterator;
 
   using const_vector_iterator = typename vector::const_iterator;
 
   GenericMultiVector() = default;
 
   GenericMultiVector( size_type length )
      : multivector_implementation( length )
   {
   }
 
   GenericMultiVector( size_type length, int vectorLength )
      : multivector_implementation( length )
   {
      for ( iterator i = this->Begin(), j = this->End(); i < j; ++i )
         *i = vector( vectorLength );
   }
 
   GenericMultiVector( const scalar& value, size_type length, int vectorLength )
      : multivector_implementation( length )
   {
      for ( iterator i = this->Begin(), j = this->End(); i < j; ++i )
         *i = vector( value, vectorLength );
   }
 
   GenericMultiVector( const vector& v0, const vector& v1 )
      : GenericMultiVector( size_type( 2 ) )
   {
      iterator i = this->Begin();
      *i = v0; *++i = v1;
   }
 
   GenericMultiVector( const vector& v0, const vector& v1, const vector& v2 )
      : GenericMultiVector( size_type( 3 ) )
   {
      iterator i = this->Begin();
      *i = v0; *++i = v1; *++i = v2;
   }
 
   GenericMultiVector( const vector& v0, const vector& v1, const vector& v2, const vector& v3 )
      : GenericMultiVector( size_type( 4 ) )
   {
      iterator i = this->Begin();
      *i = v0; *++i = v1; *++i = v2; *++i = v3;
   }
 
   GenericMultiVector( const GenericMultiVector& ) = default;
 
   GenericMultiVector( GenericMultiVector&& ) = default;
 
   ~GenericMultiVector()
   {
   }
 
   GenericMultiVector& operator =( const GenericMultiVector& ) = default;
 
   GenericMultiVector& operator =( GenericMultiVector&& ) = default;
 
   GenericMultiVector& operator =( const scalar& x )
   {
      for ( iterator i = this->Begin(), j = this->End(); i < j; ++i )
         *i = x;
      return *this;
   }
 
   GenericMultiVector& operator +=( const scalar& x )
   {
      for ( iterator i = this->Begin(), j = this->End(); i < j; ++i )
         *i += x;
      return *this;
   }
 
   GenericMultiVector& operator -=( const scalar& x )
   {
      for ( iterator i = this->Begin(), j = this->End(); i < j; ++i )
         *i -= x;
      return *this;
   }
 
   GenericMultiVector& operator *=( const scalar& x )
   {
      for ( iterator i = this->Begin(), j = this->End(); i < j; ++i )
         *i *= x;
      return *this;
   }
 
   GenericMultiVector& operator /=( const scalar& x )
   {
      for ( iterator i = this->Begin(), j = this->End(); i < j; ++i )
         *i /= x;
      return *this;
   }
 
   double Sum() const
   {
      double s = 0;
      for ( const_iterator i = this->Begin(), j = this->End(); i < j; ++i )
         s += i->Sum();
      return s;
   }
 
   double StableSum() const
   {
      DVector s( this->Length() );
      size_type n = 0;
      for ( const_iterator i = this->Begin(), j = this->End(); i < j; ++i )
         s[n++] = i->StableSum();
      return s.StableSum();
   }
 
#ifndef __PCL_NO_VECTOR_STATISTICS
 
   component MinComponent() const
   {
      if ( !this->IsEmpty() )
      {
         component min = this->Begin()->MinComponent();
         for ( const_iterator i = this->Begin(), j = this->End(); ++i < j; )
            min = pcl::Min( min, i->MinComponent() );
         return min;
      }
      return component( 0 );
   }
 
   component MaxComponent() const
   {
      if ( !this->IsEmpty() )
      {
         component max = this->Begin()->MaxComponent();
         for ( const_iterator i = this->Begin(), j = this->End(); ++i < j; )
            max = pcl::Max( max, i->MaxComponent() );
         return max;
      }
      return component( 0 );
   }
 
#endif   // !__PCL_NO_VECTOR_STATISTICS
};
 
// ----------------------------------------------------------------------------
 
#ifndef __PCL_NO_MULTIVECTOR_INSTANTIATE
 
using DMultiVector = GenericMultiVector<double>;
 
using FMultiVector = GenericMultiVector<float>;
 
using IMultiVector = GenericMultiVector<int>;
 
using MultiVector = DMultiVector;
 
#endif   // !__PCL_NO_MULTIVECTOR_INSTANTIATE
 
// ----------------------------------------------------------------------------
 
} // pcl
 
#endif   // __PCL_MultiVector_h
 
// ----------------------------------------------------------------------------
// EOF pcl/MultiVector.h - Released 2024-06-18T15:48:54Z